From: fgsfds <pvt.fgsfds@gmail.com>
Date: Wed, 4 Sep 2019 16:19:10 +0000 (+0300)
Subject: Sound: OpenAL: Add module interp setting
X-Git-Url: http://deadsoftware.ru/gitweb?p=d2df-sdl.git;a=commitdiff_plain;h=239ffbfb8dc7197102e6dd1ad094d00636960c4f

Sound: OpenAL: Add module interp setting
---

diff --git a/src/engine/e_soundfile_modplug.pas b/src/engine/e_soundfile_modplug.pas
index 9f74a16..b68487d 100644
--- a/src/engine/e_soundfile_modplug.pas
+++ b/src/engine/e_soundfile_modplug.pas
@@ -90,7 +90,12 @@ end;
 
 function TModPlugLoaderFactory.GetLoader(): TSoundLoader;
 begin
-  ModPlug_SetSettings(@Settings); // update settings just in case
+  // update interpolation setting
+  if e_MusicLerp then
+    Settings.mResamplingMode := MODPLUG_RESAMPLE_LINEAR
+  else
+    Settings.mResamplingMode := MODPLUG_RESAMPLE_NEAREST;
+  ModPlug_SetSettings(@Settings);
   Result := TModPlugLoader.Create();
 end;
 
diff --git a/src/engine/e_soundfile_xmp.pas b/src/engine/e_soundfile_xmp.pas
index afbadf3..d3e4da5 100644
--- a/src/engine/e_soundfile_xmp.pas
+++ b/src/engine/e_soundfile_xmp.pas
@@ -89,6 +89,7 @@ end;
 function TXMPLoader.Load(Data: Pointer; Len: LongWord; SStreaming: Boolean): Boolean;
 var
   Err: LongInt;
+  Interp: LongInt;
 begin
   Result := False;
 
@@ -104,6 +105,10 @@ begin
     if xmp_start_player(FXMP, 48000, 0) <> 0 then
       raise Exception.Create('xmp_start_player failed');
 
+    if e_MusicLerp then Interp := XMP_INTERP_LINEAR
+    else Interp := XMP_INTERP_NEAREST;
+    xmp_set_player(FXMP, XMP_PLAYER_INTERP, Interp);
+
     FFormat.SampleRate := 48000;
     FFormat.SampleBits := 16;
     FFormat.Channels := 2;
@@ -125,6 +130,7 @@ end;
 function TXMPLoader.Load(FName: string; SStreaming: Boolean): Boolean;
 var
   Err: LongInt;
+  Interp: LongInt;
 begin
   Result := False;
 
@@ -140,6 +146,10 @@ begin
     if xmp_start_player(FXMP, 48000, 0) <> 0 then
       raise Exception.Create('xmp_start_player failed');
 
+    if e_MusicLerp then Interp := XMP_INTERP_LINEAR
+    else Interp := XMP_INTERP_NEAREST;
+    xmp_set_player(FXMP, XMP_PLAYER_INTERP, Interp);
+
     FFormat.SampleRate := 48000;
     FFormat.SampleBits := 16;
     FFormat.Channels := 2;
diff --git a/src/game/g_sound.pas b/src/game/g_sound.pas
index 20ae02e..0c18c60 100644
--- a/src/game/g_sound.pas
+++ b/src/game/g_sound.pas
@@ -636,9 +636,8 @@ end;
 
 {$IFDEF USE_OPENAL}
 initialization
-  {$IF DEFINED(USE_FLUIDSYNTH)}
   conRegVar('s_midi_soundfont', @e_SoundFont, 'soundfont to use for midi playback', 'midi soundfont');
-  {$ENDIF}
+  conRegVar('s_mod_lerp', @e_MusicLerp, 'interpolate module playback', 'module interpolation');
 {$ENDIF}
 
 end.